Acetylene generator



July 23, 1935. A, J. FAUSEK ET AL 2,008,821

ACETYLENE GENERATOR Filed Marbh 30, 1931 3 Sheets-Sheet 1 ZZZ-3.1

ATI'OENEV July 23, 1935. A. J. FAUSEK ET AL 2,008,821

ACETYLENE GENERATOR Filed March'30, 1931 3 She'ets$heec 2 y 1935. A. J. FAUSEK El Al. I 1

@CETYLENE GENERATOR Filed March so, 1931 s SheerQs-Shet s TTOE/YE Y Patented July 23, 1935 UNITED STATES PATENT OFFICE ACETYLENE GENERATOR Arthur J. Fausek and Irwing F. Fausek, Clayton, Mo.

Application March 30, 1931, Serial No. 526,362

6 Claims. (Cl. 48-533) This invention relates generally to acetylene generators and more specifically to an improved acetylene generator provided with unique means for agitating the carbide adjacent to the valve which controls feeding of the carbide to the gas producing chamber of the generator, the predominant object of the invention being to provide an acetylene generator having carbide agitating means of such improved construction that the generator functions in a much more eflicient manner than did many forms of acetylene generators in use heretofore.

It is very well known by persons familiar with the art to which this invention relates that it is absolutely essential for efiicient operation of an acetylene generator that the carbide be agitated at a point adjacent to the valve which controls the feeding of the carbide to the gas producing chamber of the generator. Such agitation of the carbide at the point referred to heretofore was accomplished in various ways and with the aid of agitating mechanisms of various forms, and while some of these mechanisms functioned with a fair degree of efficiency it was considered by many persons familiar with such matters that great opportunity was present for improvement of such mechanisms. Many of the agitating mechanisms heretofore employed functioned in a manner to impart agitation directly to the carbide controlling valves and while the carbide was more or less successfully agitated in this manner it has been found that such manner of agitation is in many cases undesirable.

In view of the known deficiencies of the agitating mechanisms formerly employed we have devised the improved agitating mechanism disclosed herein which, briefly stated, involves agitating the carbide, not by imparting agitation to the valve itself, but rather by agitating a separate element which is located immediately adjacent to said valve. By so subjecting the carbide to agitation at the point where same is fed to the gas producing chamber of the generator the normal function of the feed controlling valve is in no way interferred with, said controlling valve being free to perform the function for which it is intended with a maximum of efliciency. Also because agitation is imparted to the carbide at the feeding point thereof by means independent of the controlling valve there is no danger that the operation of the valve will interfere in any way with the efficient operation of the agitating mechanism. In short by providing the improved generator with a carbide controlling valve mechanism and a carbide agitating mechanism which are entirely separate and distinct we eliminate entirely any likelihood that the operation of one of said mechanisms will interfere in any manner with the eflicient operation of the other mechanism.

Another important object of the invention is to provide an acetylene generator with improved means for interfering with improper and unsafe manipulation of various elements and mechanisms of the generator.

Fig. 1 is a view of the improved acetylene generator partly in elevation and partly in vertical section.

Fig. 2 is'an enlarged vertical section of the carbide agitating and valve controlling mechanism of the acetylene generator.

Fig. 3 is a horizontal section on line 3-3 of Fig. 2,.

Fig. 4 is a fragmentary view, partly in elevation and partly in vertical section, of an acetylene generator provided with a modified form of the improved agitating mechanism and valve-controlling mechanism.

Fig. 5 is a fragmentary, vertical, sectional view of another form of valve controlling mechanism.

Fig. 6 is a fragmentary, vertical, sectional view which illustrates still another form of agitating mechanism.

Fig. 7 is a cross section on line 1-1 of Fm. 2.

In the drawings, wherein is shown for the purpose of illustration, merely, several embodiments of the invention, A designates the improved acetylene generator generally, said generator comprising a lower housing I which provides the gas producing chamber of the generator, an intermediate head 2 which supports the carbide controlling valve mechanism and the carbide agitating mechanism, and a carbide hopper 3 which surmounts said intermediate head 2. The lower housing I may be of anysuitable shape and con- 40 struction, said housing being hollow so as to provide a chamber 2 wherein a body of water 3 is arranged to the approximate level indicated in Fig. 1.

The lower housing I is provided with a drain outlet 4 which is controlled by a suitable valve 5 provided with an operating lever, 6 whereby water and more or less solid matter may be drained from the chamber 2. The particular lower housing illustrated in Fig. 1 is provided with 50 a tapered upper portion I which tapers from a greater diameter at its lower end to a smaller diameter at its top, and at its extreme upper end said tapered portion is provided with an annular horizontal wall portion I (Fig. 2).

Supported by the horizontal annular wall portion 1 is the intermediate head 2 hereinbefore referred to, said head comprising a substantially cylindrical wall 2' provided with horizontally extended, annular flanges 8 and 9 at its top and bottom respectively. The intermediate head 2 is fixed to the lower housing by having the bottom flange 9 thereof secured to the horizontal annular wall portion 1 by any suitable fastening means (not shown). In like manner the carbide hopper 3 is fixed to the intermediate head 2 by suitable fastening devices III which passthrough apertures formed through an annular flange 3' at the bottom of said hopper and said annular flange 8 at the top of said intermediate head.

Arranged within the intermediate head 2 is a downwardly inclined annular wall H which provides the portion of the interior of said head 10- cated above said wall with a hopper bottom. The wall referred to is provided with a central opening |2 immediately beneath which a valve I3 is arranged, said valve having associated therewith a valve stem H which extends upwardly with respect thereto. Preferably the valve 3 is provided with a cavity in which a seat I formed of rubber or other yieldable material is disposed, said seat l5, as will presently appear herein, being movable into and out of contact with the circumferential edge of the opening l2. The vertically extended valve stem i4 is guided for vertical movement by an elongated hearing I which is fixed to a horizontal wall portion |'I disposed within the intermediate head 2. The width of the wall portion I1 is much less than the inside diameter of the cylindrical wall 2'of the intermediate head 2 as shown in Fig. 3 and extended downwardly from said wall portion I! is a. fixed sleeve |8 which surrounds and is of considerably greater diameter than the valve stem l4, the lower edge of said sleeve beinglocated at a point spaced upwardly from the opening l2. Extended upwardly from the horizontal wall portion is a pair of parallel vertical walls I! (Fig. 3), and arranged at the upper ends of said vertical walls is is an inverted V-shaped wall portion 28. The wall portions H, II, and 28 provide a housing which extends transversely of the intermediate head 2 from one side thereof to the other, but the depth of said housing, as shown clearly in Fig. 3, is much less than the inner diameter of the head 2 so that spaces 2| are provided at opposite sides of said housing through which carbide may pass. The inverted V-shaped top wall 28 of the housing causes carbide to be shed by said top wall.

Pivotally mounted on a rod 22 which is supported by the walls I! is a bell-cranklever 23, the outer end of one leg of said bell-crank lever being pivotally connected to the upper end of the valve stem l4, and the outer end of the other leg of said bell-crank lever being pivotally connected to a bifurcated element 24. The end of the bifurcated element 24 opposite to the end thereof which is connected to the bell-crank lever 23 is pivotally attached at 25 to a stud "which is fixed to and extends outwardly from a diaphragm 21-, the outer edge portion of said diaphragm being interposed between a shoulder 28 on an extension 29 of the intermediate head 2 and a similar shoulder 30 formed on a housing 3| which is secured by bolts 32 to said extension 29. Preferably the bolts 32 extend through apertures formed through the diaphragm 21 as shown in Fig. 2. The housing 3| includes an elongated sleeve portion which is screw-threaded at its outer end, and extended longitudinally through said sleeve portion is a rod 33 which constitutes a continuation of the stud 26, said rod having a. screwthreaded portion 34 of enlarged diameter on which a nut 35 is screwed. The nut 35 is screwed into close contact with a washer 36 which in turn closely contacts with the adjacent face of the diaphragm, and at the opposite face of said diaphragm a. similar washer 31 is interposed between said diaphragm on a shoulder formed on the stud 26. In this manner the unit comprising the stud 25 and rod 33 are securely fixed to the diaphragm so that movement of said diaphragm will be imparted to said stud and rod.

Screwed on the screw threaded end of the sleeve portion of the housing 3| is an end piece 38, which, as shown in Fig. 1 is provided with inclined cam faces 39. Also at the opposite ends of said inclined cam faces said end piece is provided with flat faces 40. Rotatably mounted on the rod 33 is an operating element which comprises a head portion 4| from which a handle 42 is extended. The head portion 4| is provided with an opening through which the rod 33 is extended, and formed on the face of said head portion 4| adjacent to the end piece 38 is a plurality of inclined cam faces 43 at the opposite ends of which flat faces 44 are arranged. The outer end portion of the rod 33 is of reduced diameter and is screw-threaded, and screwed on this screwthreaded rod portion is a nut 45 which forces a washer 46 into contact with a shoulder formed on the rod. The washer 45 is spaced from the head portion 4| of the operating element and interposed between said washer and said head portion is an element 41. Interposed between the inner face of the end piece 38 and the diaphragm 21 is an expansible coil spring 48 which tends to force the diaphragm in a direction away from said end piece, said coil spring at one end being seated against the washer 36 and at its opposite end being received by a spring seat 49.

It is plain that when the operating element is rotated. about the rod 33 the movement of the inclined faces 43 .of the head portion 4| of said operating element with respect to the corresponding inclined faces 39 of the end piece 38 will result in the operating element being cammed in a direction away from the fixed end piece. Such outward movement of the operating element will be imparted to the rod 33 through the element 41, washer 45, and nut 45 whereby the diaphragm 21 will be flexed outwardly. Also outward movement of the rod 33 will result in the bell-crank lever 23 being subjected to such pivotal movement, through the stud 26 and bifurcated element 24, that the valve stem M will be elevated and the valve l3 will be moved upwardly to close the opening |2 at the bottom of the wall H within the intermediate head 2. When the operating element is operated as described certain fiat faces 44 on the head portion 4| of said operating element will move into contact with certain of the flat faces 40 on the end piece 38 so as to retain said operating element in its outward position.

Pivotally mounted on a rod 50 which is supported by the walls l9 (Figs. 2 and 3) is a tubular element which surrounds the valve stem |4, said tubular element being provided with a pair of opposed arms 52 which extend upwardly from said tubular element and are provided with vertically elongated openings 53 through which the rod 50 is extended. At the lower end of the tubular element 5| same is provided with a plurality of outwardly extended prongs 54 which are intended for a purpose to be hereinafter set forth. The tubular element 5! is provided with a pair of spaced ears 55 to which a link 58 is pivotally connected, the opposite end of said link being pivotally'connected to a stud 51 which is fixed to and extends inwardly from a diaphragm 58. The effective portion of the diaphragm 58 is located in a chamber 59 provided by an extension 60 formed on the intermediate head 2, and a housing 6 l, the outer edge portion of said diaphragm being interposed between shoulders formed on said extension and housing, and fastening devices 62 which pass through apertures in the diaphragm being employed to secure said housing in place. A leaf spring 63 which is clamped to the diaphragm 58 by a nut which secures the stud 57 to the diaphragm 58 is interposed between the outer face of the diaphragm and an inner face 5| of the housing 5|.

Arranged in communication with the interior of the intermediate head 2 at a point beneath the wall. i i is a conductor 65 (Fig. 1) having a check valve 65' arranged therein, said conductor being in turn connected to'a conductor 68. The conductor 86 in like manner is connected to a conductor 67 which communicates with the chamber 59 in which the diaphragm 58 is located. Also the conductor 65 is connected to and communicates with a check valve 58 through the instrumentality of a conductor 59 produced by a plurality of pipe sections and fittings. The check valve 68 is located within the flash-back 18 of the generator, said conductor 89 passing through the wall of said flash-back at a point above the level II of the water therein.

The flash-back 10 preferably is supported partially within the lower housing l as shown in Fig. 1, said flash-back being extended through the bottom wall of said housing and through the inclined wall of the upper portion l thereof. At its lower portion the flash-back is provided with a drain 12 and at an elevated point same is provided with an inlet 13 for water. Also at the upper end of the flash-back a head 14 is provided which is bolted or otherwise secured to the shell which provides the lower portion of the flash-back. The head 14 has arranged therein a pair of spaced apart screen elements I5 between which a plurality of marble-like elements 16 is arranged, said elements being formed of any suitable hard substance which will perform the desired function. The head Id at a point above the uppermost screen element 15 is provided with a gas outlet conductor 11 with which a valve 18 is associated. 19 designates a safety valve of ordinary construction which communicates with the interior of the flash-back and functions in the usual manner to prevent the pressure within said flash-back from increasing beyond a predetermined point.

In preparing our improved acetylene generator for use the cover plate which closes the opening leading to the interior of the carbide hopper is removed and carbide is introduced into said hopper. The cover plate 80 is then replaced and is clamped in place by the clamping device 8| to provide a gas-tight joint between the cover plate and the hopper. Also water is introduced into the lower housing i through the inlet 82 which is closed by a plug 83, and water is introduced into the flash-back 10 through the filling element 13. The valve I3 is then moved to an open position by adjusting the operating element to permit the rod 33 to move inwardly whereupon particles of carbide will pass through the opening l2 and fall into the water within the lower housing I. If prior to the actual operation of the apparatus the carbide becomes packed at the opening l2 the handle 42 of the operating element may be swung back and forth a few times to impart vertical movement of the valve l3 and thus induce feeding of the carbide.

As carbide drops into the water in the lower housing i acetylene gas will be formed and this gas will pass upwardly so that the gas pressure within the intermediate head 2 will be the same as the gas pressure within the upper portion of the lower housing i, this same pressure being present at the inner faces of the diaphragms 2i and 58 respectively against which said pressure acts. Also the gas pressure within the intermediate head 2 extends through the conductor 55 wherein its passage through the conductor leading to the chamber at the outer face of the diaphragm 58 and the conductor leading to the check valve 88 within the flash-back is interrupted by the check valve 65'. As the pressure within the intermediate head 2 increases the diaphragm 58 will be flexed outwardly against the action of the spring 53 and when such pressure reaches a predetermined point the check valve will be unseated to permit pressure to pass into the conductor leading to the chamber portion at the outer face of the diaphragm 58 and the conductor leading to the check valve 68. Eventually the pressure within the intermediate head 2 and the pressure in the conductors leading to the diaphragm 58 and check valve 68 will be substantially equalized and thereafter as the pressure within the intermediate head continues to increase the check'valve 65 will be unseated to permit a small amount of gas to pass therethrough. This small amount of gas will increase the pressure within the conductor leading to the chamber portion at the outer face of the diaphragm 58 so that said diaphragm will be flexed inwardly due to the fact that the passage of the small amount of gas through the check valve 55' rendered the pressure at the outer face of the diaphragm imparted by said increased gas pressure and the spring 53 momentarily higher than the pressure at the inner face of said diaphragm.

Simultaneous with the inward flexing of the diaphragm 58 the excessive pressure in the conductor 68 leading to the check valve 58 unseats said check valve thus permitting the escape of a small amount of gas which passes upwardly through the water in the flash-back 18 to the upper portion of said flash-back. Such escape of gas from the check valve 68 reduces the pressure within the conductors leading to the check valve 68 and to the chamber portion at the outer face of the diaphragm 58 so that the pressure at the outer face of the diaphragm 58 is lower than the pressure at the inner face of said diaphragm thus permitting the latter pressure to flex the diaphragm outwardly. During the entire normal operation of the generator this exchange of pressure from the interior of the intermediate head 2 to the chamber at the outer face of the diaphragm 58 and to the check valve 68 is continued, the pressure within the intermediate head one moment being sufficient to flex the diaphragm outwardly against the action of the spring 63 at which time the check valve 65 will be unseated to increase the pressure at the outer face of the diaphragm and at the check valve 68 whereby this increased pressure will flex the diaphragm inwardly and unseat the check valve 58 to permit escape of gas upwardly through the water within the flash-back. The gas which passes from the check valve 68 upwardly through the water within the flash-back passes through the screen elements 15 and through the body of elements 16 whereby water is removed therefrom after which said gas passes through the outlet 11.

In the normal operation of the apparatus the chuck valve is quickly opened and closed a great number of times per minute hence the diaphragm 58 is rapidly vibrated inwardly and outwardly. The pivotally supported tubular element 5| is connected by the link 56 and stud 51 to the diaphragm, hence, vibration of the diaphragm will be imparted to the tubular element with the result that the lower end of said tubular element, which is provided with the prongs 54, is moved rapidly back and forth to agitate the carbide at the opening I2 and assure proper feeding of said carbide through said opening. As the pressure within the apparatus increases such pressure will flex the diaphragm 2! outwardly against the pressure of the spring 48 and in this manneradjust the valve toward the opening l2 through the cooperation of the bell-crank lever 23 and the elements associated therewith. Also as the pressure within the apparatus drops the spring 48 will move the valve away from the opening l2. In this connection it is pointed out that said bellcrank lever is provided with an extension 23' which contacts with the upper end of a coil spring 84, said coil spring contacting at its opposite end with a fixed portion of the apparatus. The coil spring 84 stablizes the movement of the bellcrank lever and prevents unnecessary fluctuation of the valve l3.

In order to prevent improper and unsafe manipulation of certain elements of the apparatus we provide a safety mechanism which comprises an amiular trackway 85 having a substantially V-shaped circumferential edge. The annular trackway 85 is fixed to the top wall of the lower housing and arranged adjacent to said trackway is a ring 86. The ring 86 has mounted thereon a plurality of rollers 86 which are provided with circumferential grooves which correspond in shape to the shape of the outer edge of the trackway 85, and these rollers are supported by said outer edge of said trackway as shown in Fig. 2 whereby the ring 86 may be rotated with respect to the annular trackway 85. Extended downwardly from the ring 86 is a bar 81 (Fig. 1) which is shaped to correspond to the contour of the lower housing and is provided with an offset portion 81' at its lower end. When the ring 86 is in its normal position the bar 81 is in such close proximity to the plug 83 which closes the water inlet 82 of the lower housing that said plug may not be removed without first rotating the ring 86. Also the offset portion 81' at the lower end of the bar 81 prevents operation of the operating lever. 6 of the valve 5 when the ring 86 is in its normal position.

Extended upwardly from the ring 86 is a post 88 to which a link 88' is pivotally attached, said link at its opposite end being pivotally connected to an arm 18' which is associated with the safety valve 18 of the flash-back. Also the ring 86 is provided with a post 88 to which a link 88' is pivotally attached. The link 88 at the end thereof opposite to the end which is attached to the post 88 is pivotally connected to an arm 88 which is associated with a safety valve 8| which communicates with the interior of the intermediate head 2. In like manner a third post 82 is extended upwardly from the ring 86, said post being provided with a bifurcated upper end portion 92'. The bifurcated upper end portion of the post 82 embraces an outer end portion-of a guard member 83 which is pivoted at 83' to asupport 84 which is secured to the wall of the carbide hopper 3, the end portion of the guard member 88 opposite to the end portion thereof which is embraced by the bifurcated portion 82' of the post 82 being normally located in close proximity to the set screw 8| of the clamping device which secures the cover plate 80 of the carbide hopper in place. Finally the ring 86 is provided with a rod 84' which extends outwardly therefrom-in close proximity to the handle 42 of the valve operating element.

The ring 86 is provided with a handle 85 which may be grasped when it is desired to rotate said ring. The ring is rotated, in the direction indicated by the arrow in Fig. 3 whereupon the bar 81 is removed out of proximity of the plug 83 and the offset portion 81' is moved away from the operating lever 6 of the valve 5. Also rotation of the ring 86 will swing the guard member 83 on its pivot so as to remove said guard member out of proximity with the set screw 8|. In addition to the foregoing, rotation of the ring 86 will cause the rod 84 to move the valve operating element in a manner to draw the valve |3 to a closed position with respect to the opening l2, and the connections between said ring and the safety valves 18 and8| will move the valve heads of said safetyvalves with respect to their seats so as to make sure that said valve heads are not stuck to their seats.

It is apparent, therefore, that the safety mechanism prevents improper manipulation of certain elements of the apparatus by thoughtless or inexperienced persons inasmuch as rotation of the ring 86 must take place before such elements may be manipulated. Also as the valve heads of the safety valves are moved with respect to their seats each time the ring is rotated sticking of said valve heads is prevented. Finally the valve I3 is moved to a closed position each time the ring 86 is rotated whereby feeding of carbide is prevented while the apparatus is inoperative. The wall of the lower housing is provided fits stops '86 with which the bar 81 contacts so as to limit the movement of the ring 86.

In the form of the invention illustrated in Fig. 4 the tubular carbide agitating element 5| is provided with a crank arm 55 to which a connecting rod 56 is connected. This connecting rod 56 is pivotally attached to a stud 5! which is fixed to a diaphragm 58 and when said diaphragm is flexed in the manner already explained slight rotary movement is imparted to the tubular element 5 I for the purpose of agitating the carbide at the opening l2. In this form of the invention the gas pressure acting against the inner face of the diaphragm M is opposed by gas pressure which passes to a chamber at the outer face of said diaphragm through a conductor 86, said conductor being provided with a controlling valve 86 and a pressure regulating device 86'.

In Fig. 5 the valve controlling element comprises an arm 4| which is pivoted at 48 to an extension formed on the end piece 38 The rod 33 is extended through an opening formed through the arm 4| and said arm is confined between nuts 81 mounted on a screw-threaded portion of said rod, said arm 4| having pivoted thereto a trigger 88. When it is desired to close the carbide valve of a generator provided with the arrangement shown in Fig. 5, the lower end of the arm 4 l is moved outwardly and the trigger is caused to engage the face of the end piece 38 as illustrated in Fig. 5. In this manner therod 33 is held outwardly against the action of the spring 48 and the carbide valve is held in a closed position.

In Fig. 6 we illustrate a modified form of the means for imparting movement to a tubular agitating element (not shown), such as the tubular agitating elements 5| and M of Figs. 1 and 4, such means comprising an inverted bell 58 the lower end portion of which is submerged in liquid contained within a chamber 59. The inverted bell 58 is provided with a downwardly extended stem 99 which is loosely connected at its lower end to a bell-crank lever Hill, said bell-crank lever being in turn pivotally connected to a link 56 which is attached to the carbide agitating element. In the operation of this form of the device gas passing from the body of the apparatus through the conductor 61 or passing through the passageway 66 moves upwardly through the passageway Hll into the inverted bell 58 and in escaping from said inverted bell during its passage to the outlet conductor M2 the gas agitates the inverted bell whereby movement is imparted to the carbide agitator.

We claim- 1. An acetylene generator including a gas producing chamber, a carbide receptacle, a valve including a valve stem for controlling passage of carbide from said carbide receptacle to said gas producing chamber, means for agitating the carbide at a point adjacent to said valve, said means comprising a tubular element which surrounds the stem of said valve, and means for subjecting said tubular element to movement.

2. An acetylene generator including a gas producing chamber, a carbide receptacle, a valve including a valve stem for controlling passage of carbide from said carbide receptacle to said gas producing chamber, means for agitating the carbide at a point adjacent to said valve, said means comprising a pivo-tally supported tubular element which surrounds the stem of said valve, and means for subjecting said tubular element to movement.

3. An acetylene generator including a gas producing chamber, a carbide receptacle, a valve including a valve stem for controlling passage of carbide from said carbide receptacle to said gas producing chamber, means for agitating the carbide at a point adjacent to said valve, said means comprising a pivotally supported tubular element which surrounds the stem of said valve, prongs associated with said tubular element, and means for subjecting said tubular element to movement.

4. An acetylene generator including a gas producing chamber, a carbide receptacle, a valve including a valve stem for controlling passage of carbide from said carbide receptacle to said gas producing chamber, means for agitating the carbide at a point adjacent to said valve, said means comprising a tubular element which surrounds the stem of said valve, and pressure-responsive means for subjecting said tubular element to movement.

5. An acetylene generator including a gas producing chamber, a carbide receptacle, a valve for controlling passage of carbide from said carbide receptacle to said gas producing chamber, means operable entirely independently of said valve for agitating the carbide at a point adjacent to said valve, pressure-responsive means for subjecting said agitating means to movement, a conductor which places said gas producing chamber in communication with said pressure-responsive means, means in said conductor for interrupting passage of gas through said conductor, a flash-back, a

check valve within said flash-back, and a second conductor which connects the last mentioned check valve with the first mentioned conductor.

6. An acetylene generator including a gas producing chamber, a carbide receptacle, a valve for controlling passage of carbide from said carbidereceptacle to said gas producing chamber, means operable entirely independently of said valve for agitating the carbide at a point adjacent to said valve, pressure-responsive means for subjecting said agitating means to movement, said pressureresponsive means comprising a diaphragm, a chamber at one side of said diaphragm which is in direct communication with said gas producing chamber, and a chamber at the opposite side of said diaphragm, a conductor which places the last mentioned chamber in communication with said gas producing chamber, means in said conductor for interrupting passage of gas through said conductor, and a gas outlet associated with said conductor.

ARTHUR J. FAUSEK.

IRWING F. FAUSEK. 

